The Story Of Space Travel. Nashville: T. Nelson, 1972 143p. Malz, Leo. Space Stamps. Johnstown, PA: American Topical Association, 1985 87p. McMahan, Jack W. McMahan's Philatelic History of the Conquest of Space: a chronology of United States missile and space launches and events. 1972 198p. References External links NASA Postage stamps of the United States History of science and technology in the United States History of spaceflight Space exploration on stamps